DTUK BLK Bidco Holdings Limited (ultimate controller BlackRock)

DTUK BLK Bidco Holdings Limited is a private limited company incorporated in England and Wales and ultimately controlled by BlackRock Inc., Delaware. The company was established in July 2024 and is registered in London, with its registered office at 5 Churchill Place, 10th Floor, London E14 5HU, following an earlier address at Intertrust UK, 1 Bartholomew Lane, London EC2N 2AX. DTUK BLK Bidco Holdings Limited functions as an investment holding vehicle for interests in UK offshore electricity transmission assets. According to Ofgem and Diamond Transmission Partners documentation, it acquired 100% of Diamond Transmission Corporation’s interests in a portfolio of Offshore Transmission Owner (OFTO) licensees, including entities serving the Burbo Bank Extension, Race Bank, Galloper, Walney Extension, Walney 1 and 2, Sheringham Shoal, London Array, Hornsea One and Hornsea Two offshore wind farms. The Crown Estate records DTUK BLK Bidco Holdings Limited as owning significant equity stakes in these OFTOs, typically alongside institutional co-investors such as HICL Infrastructure, Alba Infra Partners, Chubu and KKR, with operational management provided by Diamond Transmission UK Limited or Frontier Power and O&M services by specialists such as Ørsted and RES. Through these holdings DTUK BLK Bidco Holdings Limited provides long-term capital to regulated offshore transmission networks that connect multiple UK offshore wind projects to the onshore grid. Industry data for 2024 indicate that OFTOs operated on behalf of DTUK BLK Bidco Holdings Limited and its partners account for a substantial share of the UK OFTO market, giving the company a material role in the financing and ownership of critical transmission infrastructure that underpins the country’s offshore wind sector.